10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
i have a file with 2 columns. i want to calculate the average of column 1 based on the values of column 2. here's how the file looks like. i want to calculate the sums of numbers corresponding to 1 and then calculate the average. same for numbers corresponding to zero. any help with a code would... (1 Reply)
Discussion started by: onerokeyz
1 Replies
2. Shell Programming and Scripting
I am trying to use awk to calculate the average of all lines in $2 for every file in a directory. The below bash seems to do that, but I cannot figure out how to capture the string before the _ as the output file name and have it be tab-delimeted. Thank you :).
Filenames in... (3 Replies)
Discussion started by: cmccabe
3 Replies
3. Shell Programming and Scripting
awk '{if(len==0){last=$4;total=$6;len=1;getline}if($4!=last){printf("%s\t%f\n", last, total/len);last=$4;total=$6;len=1}else{total+=$6;len+=1}}END{printf("%s\t%f\n", last, total/len)}' exon.txt > output.txt
In the attached file I am just trying to group all the same names in column $4 and then... (2 Replies)
Discussion started by: cmccabe
2 Replies
4. Shell Programming and Scripting
Hi ,
Every day I'll get a file, in that I have to match today's file(20130619) third column to previous files (20130618,20130617), that is 124 present in previous files or not. If it matches then I have take the average values of 5th column of 124 from yesterdays and day before yesterdays file,... (5 Replies)
Discussion started by: Shenbaga.d
5 Replies
5. Shell Programming and Scripting
Dear friends,
I'm stuck with the task below, I would be thankful for all your replies.
INPUT :
Date Price Volume
20110601 73052811.61 2845833
20110602 61489062.96 9909230
20110603 72790724.65 1108927
20110606 48299507.20 7435881
20110607 ... (5 Replies)
Discussion started by: hernand
5 Replies
6. Shell Programming and Scripting
Hi!
i have a new shell script that will compute for a value...
a = b/(b+c)
c = d/(d+e)
print b" "a" "d" "c
but there will be an instance that either b+c or d+e will be "0".... if b+c or d+e is "0" it will print "#NA#...
pls help me... thanks! (10 Replies)
Discussion started by: kingpeejay
10 Replies
7. Programming
I have a file which is
2
3
4
5
6
6
so i am writing program in C to calculate mean..
#include<stdio.h>
#include<string.h>
#include <math.h>
double CALL mean(int n , double x)
main (int argc, char **argv)
{
char Buf,SEQ;
int i;
double result = 0;
FILE *fp; (3 Replies)
Discussion started by: cdfd123
3 Replies
8. Shell Programming and Scripting
Hi Friends,
Can any one help me with count average of student marks in this file (i can not change structure of the input file):
input file:
1:John Smith:2 3 4 5
2:Mark Anderson:3 2
3:Susan Waterman:2 4 2
(numbers of marks are different)
output:
Name:John Smith
ID#: 1
Avg. mark:... (6 Replies)
Discussion started by: mleplawy
6 Replies
9. Shell Programming and Scripting
hi
iam facing problem for divided (%) arthemtic function in for condition.
tell me reply and all the arthemtic function in one scripting . (2 Replies)
Discussion started by: naveeng.81
2 Replies
10. UNIX for Dummies Questions & Answers
If I have a file like this, could anyone please guide me how to find the average value in each metrix. The file has got about 130,000 metrixs.
Grid-ref= 142, 235
178 182 203 240 273 295 289 293 283 262 201 176
167 187 187 246 260 282 299 312 293 276 230 191
169 ... (2 Replies)
Discussion started by: su_in99
2 Replies
mktrashcan(1) General Commands Manual mktrashcan(1)
NAME
mktrashcan, rmtrashcan, shtrashcan - Attaches, detaches, or shows a trashcan directory
SYNOPSIS
/usr/sbin/mktrashcan trashcan directory...
/usr/sbin/rmtrashcan directory...
/usr/sbin/shtrashcan directory...
OPERANDS
Specifies the directory that contains files that were deleted from attached directories. Whenever you delete a file in the specified
directory, the file system automatically moves the file to the trashcan directory. Specifies the directory that you attach to a trashcan
directory.
DESCRIPTION
The trashcan utilities (mktrashcan and rmtrashcan) enable you to attach or detach an existing directory, which you specify as a trashcan
directory, to any number of directories within the same fileset.
A trashcan directory stores the files that are deleted with the unlink system call. For instance, you can use the mktrashcan utility to
attach a trashcan directory called /usr/trashcan to one or more directories; thereafter, when you delete a file from one of the attached
directories, the file system moves the file to the /usr/trashcan directory. Note that when more than one directory shares attachment to a
trashcan directory, files with the same file name can overwrite each other in the trashcan directory.
If you mistakenly delete a file, use the mv command to return the file from the /usr/trashcan directory to its original directory.
When you enter shtrashcan at the system prompt, the system shows the trashcan directory, if one exists, for the directory you specified.
It is important that trashcan directories have correct access permissions. If the permissions are too restrictive, then it may be impossi-
ble to remove files from the directories that are attached to the trashcan directory. In general, all users and groups that expect to use
the trashcan directory need write permission to the directory. If unexpected "permission denied" errors occur when deleting files that are
in a directory attached to a trashcan directory, use the chmod command to change the permissions on the trashcan directory.
RESTRICTIONS
The directory and trashcan directories must be in the same fileset; however, you can attach the trashcan directory to any directory within
the fileset.
EXAMPLES
The following example creates and attaches a trashcan directory, /usr/trashcan, to two directories, /usr/ray and /usr/projects/sql/test,
which are in the same fileset. The chmod command adds write permission for all users and groups on the new trashcan directory. % mkdir
/usr/trashcan % chmod a+w /usr/trashcan % mktrashcan /usr/trashcan /usr/ray /usr/projects/sql/test To attach the trashcan directory,
/usr/trashcan, to all subdirectories in the /usr directory, enter: % mktrashcan /usr/trashcan /usr/*
New subdirectories that you add beneath the /usr directory are not attached to the trashcan directory until you attach them. Also,
the mktrashcan utility distinguishes between directories and files, attaching only directories to the trashcan directory.
Note that an attached directory produces an EDUPLICATE_DIRS (-1165) error when /usr/trashcan is itself in the directory path you
attach to (as in the previous example). You can ignore this error message.
SEE ALSO
advfs(4), mkfset(8), showfsets(8)
mktrashcan(1)